<template>
  <div>
    <li
      @mouseenter="isEnter = true"
      @mouseleave="isEnter = false"
      :class="isEnter ? 'active' : ''"
    >
      <label>
        <input type="checkbox" :checked="done" @change="singelChange(id)" />
        <span>{{ content }}</span>
      </label>
      <button class="btn btn-danger" @click="deleteTodo(index)">删除</button>
    </li>
  </div>
</template>

<script>
  export default {
    name: "Item",
    props: ["id", "content", "done", "singelChange", "deleteTodo", "index"],
    data() {
      return {
        isEnter: false,
      };
    },
  };
</script>

<style scoped>
  /*item*/
  li {
    list-style: none;
    height: 36px;
    line-height: 36px;
    padding: 0 5px;
    border-bottom: 1px solid #ddd;
  }

  li label {
    float: left;
    cursor: pointer;
  }

  li label li input {
    vertical-align: middle;
    margin-right: 6px;
    position: relative;
    top: -1px;
  }

  li .btn {
    float: right;
    display: none;
    margin-top: 3px;
  }

  li:before {
    content: initial;
  }

  li:last-child {
    border-bottom: none;
  }
  li.active {
    background: #ccc;
  }
  li.active button {
    display: block;
  }
</style>
